Soundux

During streams, games, or calls you want to play sound effects, but the system can't route them to others. Soundux is a cross-platform soundboard: a cross-platform soundboard with a simple interface that can play effects into your microphone so others hear them.

Features

Soundboard: Play effects with a click.

Routed Output: Play into the mic channel.

Simple UI: Easy to use.

Open Source: Cross-platform, free.